Oh, ComScore. Every month you come out with a new market share report for smartphones, and every month it seems to offer the same theme: Android and iOS go up, RIM and Microsoft go down. The latest report, which details the three-month period ending in January, shows an increase in Google's mobile OS of 2.3 percent while Apple jumped 1.4; conversely, RIM dropped 2 percent while Microsoft (which likely encompasses WinMo and Windows Phone) went down a percentage point. Individual OEM market share is even more lackluster: LG and Motorola dipped ever so slightly, while Apple jumped up a couple percentage points. Possibly the most noteworthy item in the report, however, is the fact that the total number of US smartphone subscribers has finally exceeded 100 million. That count appears to be growing at an incredible pace, too, so it may not be terribly long before the coveted 200 million milestone is within reach.

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comScore Reports January 2012 U.S. Mobile Subscriber Market Share

More Than 100 Million U.S. Mobile Subscribers Now Use Smartphones

RESTON, VA, March 6, 2012 – comScore, Inc. (NASDAQ: SCOR), a leader in measuring the digital world, today released data from the comScore MobiLens service, reporting key trends in the U.S. mobile phone industry during the three month average period ending January 2012. The study surveyed more than 30,000 U.S. mobile subscribers and found Samsung to be the top handset manufacturer overall with 25.4 percent market share. Google Android continued to grow its share in the smartphone market, accounting for 48.6 percent of smartphone subscribers.

OEM Market Share

For the three-month average period ending in January, 234 million Americans age 13 and older used mobile devices. Device manufacturer Samsung ranked as the top OEM with 25.4 percent of U.S. mobile subscribers, followed by LG with 19.7 percent share and Motorola with 13.2 percent share. Apple continued to capture share in the OEM market with 12.8 percent of total mobile subscribers (up 2.0 percentage points), while RIM rounded out the top five with 6.6 percent.

Smartphone Platform Market Share

The number of U.S. smartphone subscribers surpassed the 100-million mark in January, up 13 percent since October to 101.3 million subscribers. Google Android ranked as the top smartphone platform with 48.6 percent market share (up 2.3 percentage points) followed by Apple with 29.5 percent market share (up 1.4 percentage points). RIM ranked third with 15.2 percent share, followed by Microsoft (4.4 percent) and Symbian (1.5 percent).

Mobile Content Usage

In January, 74.6 percent of U.S. mobile subscribers used text messaging on their mobile device, up 2.8 percentage points. Downloaded applications were used by 48.6 percent of subscribers (up 4.8 percentage points), while browsers were used by 48.5 percent (up 4.5 percentage points). Accessing of social networking sites or blogs increased 3.4 percentage points to 35.7 percent of mobile subscribers. Game-playing was done by 31.8 percent of the mobile audience (up 2.6 percentage points), while 24.5 percent listened to music on their phones (up 3.3 percentage points).